Angelica Singleton Van Buren

Sarah Angelica Van Buren was an American heiress and a daughter-in-law of the eighth president of the United States, Martin Van Buren. She was married to the President's son, Abraham Van Buren II. She assumed the post of first lady because the president's wife, Hannah Van Buren, had died and he never remarried. She is the youngest woman ever to act as the White House hostess, assuming the role at the age of 20.